<template>
  <view v-if="goodsInfo.goods_name" class="goods-detail-container">
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular="true">
      <swiper-item v-for="(item, i) in goodsInfo.pics" :key="i">
        <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>
    </swiper>
    <!-- 商品信息区域 -->
    <view class="goods-info-box">
      <!-- 商品价格 -->
      <view class="price">¥{{goodsInfo.goods_price}}</view>
      <!-- 商品信息主体区域 -->
      <view class="goods-info-body">
        <!-- 商品名称 -->
        <view class="goods-name">{{goodsInfo.goods_name}}</view>
        <!-- 收藏图标 -->
        <view class="favorite">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <!-- 运费 -->
      <view class="yf">快递：免运费</view>
    </view>
    <!-- 商品图文区域 -->
    <view class="pic-text">
      <rich-text :nodes="goodsInfo.goods_introduce"></rich-text>
    </view>
    <!-- 商品导航组件区域 -->
    <view class="goods_nav">
      <uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick" />
    </view>
  </view>
</template>

<script>
  import { mapState, mapMutations, mapGetters } from 'vuex'
  export default {
    computed: {
      ...mapState('m_cart',[]),
      ...mapGetters('m_cart', ['total'])
    },
    watch: {
      // total(newValue) {
      //   const findResult = this.options.find(x => x.text === '购物车')
      //   if (findResult) {
      //     findResult.info = newValue
      //   }
      // }
      total: {
        handler(newValue) {
            const findResult = this.options.find(x => x.text === '购物车')
            if (findResult) {
              findResult.info = newValue
            }
        },
        immediate: true
      }
    },
    data() {
      return {
        goodsInfo: {},
        options: [{
            icon: 'headphones',
            text: '客服'
          }, {
            icon: 'shop',
            text: '商铺',  
            info: 0,
            //infoBackgroundColor: '#007aff',
            //infoColor: 'red'
          },{
            icon: 'cart',
            text: '购物车',
            info: 0
            },
        ],
        // 右侧按钮组的配置对象
        buttonGroup: [{
            text: '加入购物车',
            backgroundColor: '#ff0000',
            color: '#fff'
          },
          {
            text: '立即购买',
            backgroundColor: '#ffa200',
            color: '#fff'
          }
        ]
      }
    },
    onLoad(options) {
      const goodsId = options.goods_id;
      this.getGoodsInfo(goodsId)
    },
    methods: {
      ...mapMutations('m_cart', ['addToCart']),
      //获取商品详情
      async getGoodsInfo(goodsId) {
        const {data:res} = await uni.$http.get('/api/public/v1/goods/detail', {goods_id: goodsId})
        if (res.meta.status != 200) return uni.$showMsg()
        res.message.goods_introduce = res.message.goods_introduce
        .replace(/<img /g, '<img style="display:block;"').replace(/.webp/g, '.jpg')
        this.goodsInfo = res.message
      },
      //预览图片
      preview(i) {
        uni.previewImage({
          current: i,
          urls: this.goodsInfo.pics.map(u => u.pics_big)
        })
      },
      //客服，商铺，购物车点击事件
      onClick(e) {
        //跳转购物车
        if (e.content.text === '购物车') {
          uni.switchTab({
            url: '/pages/cart/cart'
          })
        }
      },
      //加入购物车，立即购买点击事件
      buttonClick(e) {
        if (e.content.text === '加入购物车') {
          //组织商品的信息对象
          const goods = {
            goods_id: this.goodsInfo.goods_id,
            goods_name: this.goodsInfo.goods_name,
            goods_price: this.goodsInfo.goods_price,
            goods_count: 1,
            goods_small_logo: this.goodsInfo.goods_small_logo,
            goods_state: true
          }
          this.addToCart(goods)
          
        }
      }
    }
  }
</script>

<style lang="scss">
  swiper {
    height: 750rpx;
    image {
      width: 100%;
      height: 100%;
    }
  }
  .goods-info-box{
    padding: 10px;
    padding-right: 0;
    border-bottom: 1px solid #efefef;
    .price{
      color: #C00000;
      font-size: 18px;
      margin: 10px 0;
    }
    .goods-info-body {
      display: flex;
      justify-content: space-between;
      .goods-name {
        font-size: 13px;
        margin-right: 10px;
      }
      .favorite {
        width: 100px;
        font-size: 12px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        border-left: 1px solid #efefef;
        color: gray;
      }
    }
    .yf {
      font-size: 12px;
      color: gray;
      margin: 10px 0;
    }
  }
  .pic-text {
    margin-top: 20px;
  }
  .goods_nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
  }
  .goods-detail-container {
    padding-bottom: 50px;
  }
</style>
